Förstner operator

General description

This package implements the Förstner interest point detector in Matlab. The algorithm extracts junction and circular points from a greyvalue image with subpixel accuracy. It also includes some extensions proposed by Köthe (2003).

.

Input and Output

Input:

a single greyvalue image (image with one channel)

control parameters (optional)

Output:

image coordinates of extracted points with subpixel accuracy. The points are classified into junction and circular points.

integer image coordinates of window centers. These windows are used for the estimation of the points mentioned above.